#1, Everytime I use full elevator defelction I get roll added into it. I can't complete a clean tight loop as the planes nose always ends up going somewhere else. I've tried and tried to calibrate it out but can't. Anybody else have this problem?

#2. How hard is it to hover? For the life of me I can't get anything to hover, the nose is always wandering around when I go vertical and stop climing. It's either yawing or pitching and I can't keep up with the inputs to keep it straight.